Segmented Soil Cultivation Working Element with Movable Projections
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Solution Overview
Problem
Existing soil cultivation devices face inefficiencies in mechanical weed control and soil movement, with existing working elements often leading to clod formation and uneven soil distribution, which can damage crops and hinder effective soil cultivation.
Innovation Solution
A working element with a central element and a rotatable rotation component featuring segments that move relative to each other, incorporating a cutting edge and projection design that allows for efficient soil penetration, weed control, and soil movement, with a freewheel mechanism to ensure operation in the working direction, and adjustable projections for optimal soil movement and accumulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional working element is used for soil cultivation, then soil movement occurs, but clod formation and uneven soil distribution happen which can damage crops
Solution Approach 1:
The working element is divided into multiple segments (first segment, second segment, etc.) that can move relative to each other in the direction of the rotational axis. This segmentation prevents soil clods from accumulating and being thrown onto crops, as the gaps between segments allow clods to fall through rather than forming uneven distributions that damage plants.
Solution Approach 2:
The segments are designed to be movable relative to one another in the direction of the rotational axis, creating a dynamic structure that adapts to soil conditions. This mobility prevents rigid clod formation and allows the working element to smoothly cultivate soil without creating harmful uneven distributions that would damage crops.
2Reliability
If the working element penetrates deeply into the soil for effective weed control, then more energy is required for soil cultivation
Solution Approach 1:
The cutting edge is segmented across multiple segments, allowing each segment to independently engage with the soil and weeds. This distributed cutting action reduces the peak force required at any single point, enabling effective weed control with lower overall energy consumption compared to a single rigid cutting edge.
Solution Approach 2:
The cutting edge is designed with a curved profile that tapers radially, creating a favorable angle of attack as the working element rotates through the soil. This curvature allows the segments to smoothly penetrate and cut through weeds and soil with reduced resistance, decreasing the energy required for effective weed control.
3Ease of manufacture
If the working element is designed with a fixed structure for simplicity, then manufacturing is easier, but wear on the ends of segments occurs more rapidly
Solution Approach 1:
The segments are designed to move relative to one another in the direction of the rotational axis, creating a dynamic wear distribution pattern. This mobility prevents any single end of a segment from bearing excessive or concentrated wear, thereby extending the overall service life of the working element while maintaining a relatively simple segmented structure that remains manufacturable.
4Device complexity
If the rotating component extends perpendicular to the rotation axis for simplicity, then the design is simpler, but soil movement against gravity is less effective
Solution Approach 1:
The rotating component is designed to extend at an obtuse angle to the rotation axis rather than perpendicular to it. This asymmetric orientation optimizes the geometry for moving soil against gravity, as the angled configuration creates more effective lifting and redistribution of soil particles. The increased angle enhances the vertical component of soil movement, improving productivity for ridge formation and soil accumulation while maintaining manageable design complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables energy-efficient soil cultivation, reduces wear on the working element, prevents clod formation, and facilitates effective soil movement and accumulation, enhancing the efficiency of soil cultivation while minimizing damage to crops.
Implementation Method 1
The cutting edge serves to cut through weeds and their roots and facilitates the pressing of a segment into the soil
Implementation Method 2
The working element is moved through the soil in a soil cultivation direction, causing the working element to perform a rolling motion
Implementation Method 3
The projection of the segments serves to move soil against the direction of gravity above the surface of the soil to be worked, creating a mound of soil
Data Source
Figure 1
AI summary
A working element 1 for a soil cultivation implement comprises a central element 11, which is arranged in a central region of the working element 1, and a rotating component 10, which is rotatable about an axis of rotation Y in a direction of rotation by means of the central element 11 and extends from the central element 11 in a radial direction X that forms an obtuse angle with the axis of rotation Y. The rotating component 10 has segments 12 that extend in the radial direction X to the end of the rotating component 10, each segment having a cutting edge 12c at one end radially X away from the central element 11, a plunge edge 12a on a side facing forward in the direction of rotation, and a projection 12d that circumferentially in the direction of rotation and projects in the direction of the axis of rotation Y. The working element 1 is designed such that the segments 12 are movable relative to each other in the direction of the axis of rotation Y.